This is just what this ability needed to make the GCD feel justified. I mean, if they aren't going to get rid of it this is the next best thing. Now just put damage on hunter's mark too.
Bestial Wrath Sends you and your pet into a rage, instantly dealing [Attack power * 0.65 * 1 * (1 + Versatility) * 1] Physical damage to its target, and increasing all damage you both deal by 25% for 15 sec.
Beast Mastery (Level 34)
Bestial Wrath's remaining cooldown is reduced by 12 sec each time you use Barbed Shot
https://www.wowhead.com/news=317904/...es-tank-tuning